The invention discloses a multifunctional car body for a sand stabilization car. The space using rate of the sand stabilization car is improved, and simple and efficient grass planting is achieved. The multifunctional car body comprises a front car body shell, a main car body shell, a back car body shell and a car
body frame. The main car body shell comprises a main side shell and a main upper shell (comprising an upper front frame cover plate and an upper back frame cover plate), wherein the main side shell comprises a first hinge door, a second hinge door, an upper middle baffle, a front grass box hinge door (comprising a disassembling and assembling door and a
crawling ladder) and a back grass box hinge door (comprising a
crawling ladder). Frame baffles of the front car body shell are each provided with a bending plate and a pull
handle, and therefore a person can safely walk through the frame baffles; the first hinge door and the second hinge door can be opened for ventilation and heat dissipation, and therefore internal mechanisms of the car body can be conveniently and rapidly checked and maintained; the grass box hinge
doors can be unfolded for containing grass bales and allowing the person to walk thereon, and the
crawling ladders on the grass box hinge
doors can be opened to flap down so that the person can
climb to grass box hinge door platforms for managing the grass bales; and a cover plate is not arranged between the upper front frame cover plate and the upper back frame cover plate, and therefore ventilation and heat dissipation can be achieved, and overheating burning of the grass bales is prevented.